I suppose I ought to recant. This article discusses the spawn from South to North.

I want to find fish fast. The areas we hunt are huge. The tactical key has nothing to do with rods, reels, lines, or lures. The key is on the console. Following temperature gradients leads you to the hottest prespawn bites fastest. Until water temperatures rise over 60°F, a 1°F temperature change can be pivotal. You need to watch the temp gauge and find the warmest water in northern bays or secluded basins that warm fastest. If the entire bay is 49°F, a spot the size of a dump truck that’s 51°F could hold seemingly every crappie in the area, likely the most dense concentration found all year.

Read more: http://www.in-fisherman.com/panfish/early-spring-crappie-tactics/#ixzz3YbSfgd